93 Toyota pickup 22RE engine flooding at idle.

Checked cold start injector and switch, checked good, done fuel pressure test, wouldn't hold pressure replaced injectors as they were all dripping, started it back up ran great idled fine, thought I had got it fixed, drove it 10 miles and it started to do it again, got back to the shop, disconnected everything with the injection system, ohmed out the wiring I got a resistive reading on the number 20 connector side of harness for the injectors everything is disconnected, no injectors or the ECM connected. I have tried to find a book on this truck but to no avail, Toyota tells me that this system is for 1993 only, it is all by itself. I don't know if this is a normal reading or if something is wrong. I'm stuck, anybody have any suggestions?

4 Answers

Did you recheck the fuel pressure after it started acting up again? Does
it only act up at idle but drive out ok if you give it some gas? Reason I
ask is had a 90 ranger the other day that had idle/starting issues but
when you did get it to start it would drive and idle ok until turned off then
same issues with starting. Turned out that the rubber hose hooked to
the fuel pump had a pin hole in it. Would not hold good fuel pressure at
times but other times did fine. Replace the small hose in the tank and all
is good now. Way I narrowed it down to being in the tank and not an
injector issue causing the fuel pressure to drop was to unhook fuel line
from injector rail and adapted my pressure gauge to the fuel line end.
Know this is not really answering your question but just something to
think about.

I finally found the problem, someone had been in the ECM harness
splicing wiring and didn't use the proper solder and shrink wrap on the
splices, they just twisted the wires together taped them up and that was
that, so the damp climate out here started to do it's thing on the tape and
wires and bang instant driveabality issues. So I cut out all of the corroded
wiring, soldered and shrink wrapped all my connections put the thing back
together, fired it up drove it and I am as happy as can be, it runs great.

Reminds me of a funny story, My girlfriend owned a Nissan exterra, it kept blowing the tail light fuse, finally I got so frustrated, I looked underneath as I was tracing the wires, whoever wired up the trailer harness (check this out), wrapped the wires around the exhaust pipes, eventually the wire insulation melted and shorted out. UNREAL, YEA????????????

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